This brand-new W124 window regulator has part numbers 81626406055 and 81626406056, and fits MAN trucks perfectly.It acts as a key body part to ensure the truck window moves up and down smoothly. Crafted from tough and anti-deterioration materials, it runs stably and never gets stuck even with long-term frequent operation. Produced to meet standard OEM requirements, it features precise dimensions for effortless direct installation. It is well suited for routine truck maintenance and replacement of faulty window regulators.